Bitcoin.org - Bitcoin uses
peer-to-peer technology to operate with no central authority or banks;
managing transactions and the issuing of bitcoins is carried out
collectively by the network. Bitcoin is open-source; its design is
public, nobody owns or controls Bitcoin and everyone can take part.
Through many of its unique properties, Bitcoin allows exciting uses that
could not be covered by any previous payment system.Securing your wallet
- A Bitcoin wallet is like a wallet with cash. If you wouldn't keep a
thousand dollars in your pocket, you might want to have the same
consideration for your Bitcoin wallet
Choose your Bitcoin wallet

Ethereum Project -
Ethereum is a decentralized platform that runs smart contracts:
applications that run exactly as programmed without any possibility of
downtime, censorship, fraud or third party interference.
These apps run on a custom built blockchain, an enormously powerful
shared global infrastructure that can move value around and represent
the ownership of property.
This enables developers to create markets, store registries of debts or
promises, move funds in accordance with instructions given long in the
past (like a will or a futures contract) and many other things that have
not been invented yet, all without a middle man or counterparty risk.
The project was bootstrapped via an ether presale in August 2014 by fans
all around the world. It is developed by the Ethereum Foundation, a
Swiss nonprofit, with contributions from great minds across the
globe.
What is Ether? -
Ether is a necessary element - a fuel - for operating the distributed
application platform Ethereum. It is a form of payment made by the
clients of the platform to the machines executing the requested
operations. To put it another way, ether is the incentive ensuring that
developers write quality applications (wasteful code costs more), and
that the network remains healthy (people are compensated for their
contributed resources).

Litecoin.org - Litecoin is
a peer-to-peer Internet currency that enables instant, near-zero cost
payments to anyone in the world. Litecoin is an open source, global
payment network that is fully decentralized without any central
authorities. Mathematics secures the network and empowers individuals to
control their own finances. Litecoin features faster transaction
confirmation times and improved storage efficiency than the leading
math-based currency. With substantial industry support, trade volume and
liquidity, Litecoin is a proven medium of commerce complementary to
Bitcoin.

Powerful and easy to use Bitcoin Wallet allowing users to easily control
their own bitcoin private keys with the familiarity and ease of mobile
banking.
Take control of your funds! With Airbitz, only you have access to your
funds or transaction data. Neither Airbitz or any 3rd party can access
your money or data. You get the financial privacy and autonomy Bitcoin
was designed for with the ease of use even grandma could handle.

Bitcoin Core is programmed to decide which block chain contains valid
transactions. The users of Bitcoin Core only accept transactions for
that block chain, making it the Bitcoin block chain that everyone else
wants to use
It is these users who keep Bitcoin decentralized. They individually run
their own Bitcoin Core full nodes, and each of those full nodes
separately follows the exact same rules to decide which block chain is
valid.
There’s no voting or other corruptible process involved: there’s just
individual software following identical rules—”math”—to evaluate
identical blocks and coming to identical conclusions about which block
chain is valid.
This shared agreement (called consensus) allows people like you to only
accept valid bitcoins, enforcing Bitcoin’s rules against even the most
powerful miners.
In addition to improving Bitcoin’s decentralization, Bitcoin Core users
get better security for their bitcoins, privacy features not available
in other wallets, a choice of user interfaces and several other powerful
features.
Bitcoin Core is a full Bitcoin client and builds the backbone of the
network. It offers high levels of security, privacy, and stability.
However, it has fewer features and it takes a lot of space and memory.

Get started with bitcoin payments. Accept bitcoin, store and spend
bitcoin securely, or turn bitcoin into dollars with the BitPay Card.
Stop storing your bitcoin on a website.
Not even BitPay can access your money.
Get real security by using a real wallet. Create a normal wallet for
immediate payments, or lock down your security by requiring payments to
be accepted by up to 12 different devices.

Bread is the easy and secure bitcoin wallet, the best way to get started
with bitcoin. Our simple, streamlined design is easy for beginners, yet
powerful enough for experienced users.
Easy: Get started in seconds! No registration or signups required. Have
a question? Bread's robust help center is always a single tap away.
Secure: Everything needed to access your bitcoin is stored securely on
your own device. We use industry-leading hardware encryption to ensure
your funds are safe, even if you lose your phone.
Private: Bread connects directly to the bitcoin network and doesn't rely
on our servers. This means we can't see your financial information, and
you are in control of your money 24 hours a day.

CEX.IO is a place for everyone who wants to simply buy and sell
Bitcoins. Deposit funds using your Visa/MasterCard or bank transfer.
Instant buy/sell of Bitcoins at fair price is guaranteed. Nothing extra.
Join over 700,000 users from all over the world satisfied with our
services.
Bitcoin Trading - Advanced order-matching algorithms are backed by
unique trade engine. Orderbook liquidity allows to execute high-volume
orders and apply market making trading, high frequency trading and
scalping strategies. Compliant with security standards, we guarantee
safety of your assets and data.
For the users to buy Bitcoin, CEX.IO provides a trading platform for
different people also through a mobile application. The application
provides opportunities for trading the most spread currencies, such as
Bitcoin, Ethereum, Dash, and Zcash for fiat money. The customers may
choose between the market and limit orders and compare market situation
on various exchanges. They are also able to add new cards or use the
linked ones for payment and to deposit and withdraw money instantly. As
a result, the app provides access to the functionality of CEX.IO at any
time and from everywhere.

Buy and sell digital currency.
Coinbase is the world’s most popular way to buy and sell bitcoin, ethereum, and litecoin.

Coinbase is the world's most popular bitcoin, ethereum, and litecoin
wallet. We make it easy to securely buy, use, store, and accept bitcoin,
ethereum, and litecoin. Coinbase for iOS has been designed from the
ground up to to provide the best possible digital money experience on
mobile.
With the sleek and simple Coinbase iOS app you can:
* STORE BITCOIN, ETHER, AND LITECOIN SECURELY - Securely store it in your Coinbase wallet or vault for zero fees
* BUY IT EASILY - Instantly buy and sell bitcoin, ether, and litecoin using a combination of bank accounts, PayPal, credit cards, and debit cards
* START SPENDING - Send money to friends or shop with merchants who accept bitcoin

Show your favorite crypto currencies directly in the Mac statusbar. You
decide what to display and how to display it. There are 6 different ways
of showing the ticker in the status bar including ways to fit even more
currencies in the status bar without taking up too much space.
Support for more than 1300 currencies/coins including but not limited to:
* Bitcoin (BTC)
* Ethereum (ETH)
* Ripple (XRP)
* Litecoin (LTC)
* Ethereum Classic (ETC)
* NEM (XEM)
* Dash (DASH)
* IOTA (MIOTA)
etc.

Litecoin is a peer-to-peer Internet currency that enables instant,
near-zero cost payments to anyone in the world. Litecoin is an open
source, global payment network that is fully decentralized without any
central authorities. Mathematics secures the network and empowers
individuals to control their own finances. Litecoin features faster
transaction confirmation times and improved storage efficiency than the
leading math-based currency. With substantial industry support, trade
volume and liquidity, Litecoin is a proven medium of commerce
complementary to Bitcoin.

Ether is a necessary element - a fuel - for operating the distributed
application platform Ethereum. It is a form of payment made by the
clients of the platform to the machines executing the requested
operations. To put it another way, ether is the incentive ensuring that
developers write quality applications (wasteful code costs more), and
that the network remains healthy (people are compensated for their
contributed resources).
If you just want to test the technology, you probably don't need real
ether. Download the latest Wallet app and switch to the Test Network.

Free, open-source, client-side interface for generating Ethereum wallets
& more. Interact with the Ethereum blockchain easily & securely.
Double-check the URL ( .com ) before unlocking your wallet.
How To Protect Yourself from Loss
If you lose your private key or password, it is gone forever. Don't lose it.
Make a backup of your private key and password. Do NOT just store it on your computer. Print it out on a piece of paper or save it to a USB drive.
Store this paper or USB drive in a different physical location. A backup is not useful if it is destroyed by a fire or flood along with your laptop.
Do not store your private key in Dropbox, Google Drive, or other cloud storage. If that account is compromised, your funds will be stolen.
If you have more than 1-week's worth of pay worth of cryptocurrency, get a hardware wallet. No excuses. It's worth it. I promise.

Stockfolio is a stock and cryptocurrency investment app for Mac allowing
you to easily research and track your portfolio.
Keep an eye on your investments in the portfolio section of Stockfolio.
We have designed it with you in mind, and it has already received
multiple updates based on valuable customer feedback.

So today you got your TREZOR. Congratulations! In the small box with the shiny TREZOR seal on it you should find:
Your new TREZOR device
USB cable for your TREZOR
Two little booklets where you’ll write down your recovery seed
Lanyard
User manual
Set of stickers (4 pcs)
TREZOR Wallet is an easy-to-use interface for your TREZOR device. From
this Wallet, you can easily control your coins, manage your balance and
initiate transfers.